COVID-19 Vaccines

The Moderna vaccine's ability to shield against infection drops sharply when tested on the omicron variant. But getting a booster pumps the protection back up again.

The policy goes into effect Jan. 3, with a short grace period.

The updates come as COVID-19 cases, deaths and hospitalization are all rising again and the U.S. hovers around 800,000 pandemic deaths.

The U.S. Supreme Court has turned away a challenge to New York state's vaccine mandate for healthcare workers—a mandate that provide no exceptions for religious objectors.

“We're making every effort to make sure the current surge doesn't affect our ability to take care of non-COVID patients.”

The mandate will start on Jan. 3, 2022. Restaurant employees will also have to show that they are vaccinated.

Demand is high, and appointments in and around Philadelphia are at a premium right now. But super vaccination clinics probably won’t be back.

Even as cases continue to crop up, the NFL and NHL have no current plans to follow the NBA’s lead of requiring an additional dose of a COVID-19 vaccine.

Cities such as New York and San Francisco have required proof of vaccination to eat inside a restaurant for months.

The world has "lost the plot" on equitable vaccine access and is falling far short of targets to vaccinate the global south, according to scathing assessments from experts.

The U.S. is expanding COVID-19 boosters, ruling that 16- and 17-year-olds can get a third dose of Pfizer’s vaccine.

In small studies in South Africa and Germany, the results indicate a marked decrease in the ability of vaccines to neutralize this variant.

New cases in the U.S. climbed from an average of nearly 95,000 a day on Nov. 22 to almost 119,000 a day this week, and hospitalizations are up 25% from a month ago.

Pfizer and its partner BioNTech said lab tests showed a booster dose increased by 25-fold the level of so-called neutralizing antibodies against omicron.

U.S. District Court Judge R. Stan Baker, in Augusta, Georgia, issued a stay to bar enforcement of the mandate nationwide.